However, some species such as ducks, geese and swans can carry and spread bird flu without any signs. The H5N1 strain of the avian influenza virus is highly contagious among birds, and spread by ...
Dozens of swans have been found dead in the ... She said the charity has also collected around 15 dead geese, as well as moorhens, coots and ducks, and has had a report of a dead heron.